android11应用安装目录变更

2024-07-12 19:13| 来源: 网络整理| 查看: 265

又变了。。。 https://android.googlesource.com/platform/frameworks/base/+/refs/tags/android-platform-11.0.0_r7/services/core/java/com/android/server/pm/PackageManagerService.java#16016

/** * Given {@code targetDir}, returns {@code targetDir/~~[randomStrA]/[packageName]-[randomStrB].} * Makes sure that {@code targetDir/~~[randomStrA]} directory doesn't exist. * Notice that this method doesn't actually create any directory. * * @param targetDir Directory that is two-levels up from the result directory. * @param packageName Name of the package whose code files are to be installed under the result * directory. * @return File object for the directory that should hold the code files of {@code packageName}. */ private File getNextCodePath(File targetDir, String packageName) { SecureRandom random = new SecureRandom(); byte[] bytes = new byte[16]; File firstLevelDir; do { random.nextBytes(bytes); String dirName = RANDOM_DIR_PREFIX + Base64.encodeToString(bytes, Base64.URL_SAFE | Base64.NO_WRAP); firstLevelDir = new File(targetDir, dirName); } while (firstLevelDir.exists()); random.nextBytes(bytes); String suffix = Base64.encodeToString(bytes, Base64.URL_SAFE | Base64.NO_WRAP); return new File(firstLevelDir, packageName + "-" + suffix); }

变为先在/data/app/目录下创建随机的目录，

/data/app/~~Hla4zz56jaUwsb44fhZDmg==/pkg-dpjGrfyX2aVwmhQt_Yg2Kw==/base.apk

前后都加了前缀，不确定为什么这么做，难道有什么绕过随机后缀的方式得到路径，不然为什么还非要再加个前缀，当然肯定是更安全了。

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